Rana Daggubati to play Naval officer in his next

The story is based on true life incidents where a naval officer of the Indian submarine S21 along with his crew members is trapped underwater for 18 days

The film will be produced by PVP Cinema and the makers plan to promote the project as India's first submarine warfare movie.

According to sources from the team, the shooting will take place in a Submarine constructed inside a studio in Hyderabad.
The film will also see renowned star Prakash Raj in an important character, revealed a source.